Oven-grate.



No. 878,831. PATENTED FEB. 11: 1908.

. LSLAPO.

OVEN GRATE:

- APPLICATION FILED AUG. 9, 1907.

m: "aims PITIIS cm. WASHINGTON, n. c.

ISAAC SLAPO, OF NEW YORK, N. Y.

OVEN-GRATE T 0 all whom it may concern:

Be it known that I, ISAAC SLAPO, a subject of the Czar of Russia, residing at New York city, Manhattan borough, county and State of New York, have invented certain new and useful Improvements in Oven- Grates, of which the following is a clear, full, and exact description.

This invention relates to water-co0led rocking grates, that is to say, grates which are surrounded by a cooling medium adapted to conduct a large amount of heat therefrom, whereby the said grates are kept from burning and clinkering.

My improved grate is particularly adapted for bakers ovens in which a high degree of heat is maintained, and for that reason the grates ordinarily used burn out and are short lived.

To carry out the purpose of my invention the grate-frame comprises a hollow box-like structure in which water is caused to circulate, in the manner of a water-jacket, the said water serving to conduct the heat from the frame and grates, which are rotatablymounted on the saidframe.

To these and other ends, which will hereinafter appear, my invention comprises the novel features of improvement and combination and arrangement of.parts which I will now proceed to describe and finally claim, reference being had to the accompanying drawing, forming part hereof, wherein- Figure 1 is a diagrammatic sectional plan view of a bakers oven showing my improved grate in position and also showing the inlet and outletpipes for the water; Fig. 2 is an enlarged cross-sectional detail view of my improved grate, the section being taken on a line 11-0. in Fig. 1; Fig. 3 is a front view of my improved grate, looking from the left in Fig. 1; and Fig. 4 is a fragmentary detail sectional view, the section being taken on a line bb in Fig. 2, and shows the manner of pivotally supporting the grate on the frame.

Like numerals of reference are intended to indicate corresponding parts in the several views.

Referring ,to the drawing, the numeral 1 indicates the side-walls of an oven, while 2 indicates the usual tiled flooring. A door 3 is hung at the opening 4 in the front wall of the oven for the purpose of inserting or withdrawing articles, as is usual. As is usual in bakers ovens, I place the grate at one side of the oven, as shown in Fig. 1, the

Specification of Letters Patent.

Application filed August 9| 1907- Serial No. 387.926.

Patented Feb. 11, 1908.

usual door 5 being adjacent thereto. The frame and grate can be of any desired shape, in this instance being shown rectangular.

Referring to Fig. 2, it will be seen that the frame 6, which supports the grate 7, has a passage or conduit 8 therein, which passes completely around the grate 7. In the front wall 9 of the frame 6, I secure awater inlet pipe 9 and an outlet pipe 10 (see also Fig. 1). Through the agency of the said pipes, and a suitable source of water supply (not 7 and hollow frame 6 become heated, the water in the passage 8 will also become heated, and by virtue of .this fact a large amount of heat is conducted from the grate and frame.

To pivotally secure the grate 7 in position, I make use of an integral socket 11 on the frame 6, provided with a concave seat into which the trunnion 12, which is integral with the grate 7 is adapted to fit; and to secure the said grate 7 in said socket, I employ a bracket 13, which is screwed or otherwise secured to the frame 6, as shown in Figs. 2 and 4.

Each bracket 13 is L-shaped, its base engaging the under face of frame 6, to which it is secured, as before stated, by bolts 13. The vertical part of the bracket engages the inner side face of frame 6, being formed, as depicted in Fig. 4, with a concave seat 13", which co-acts with socket 11, to form a pocket for trunnions 12.

The grate 7 is supplied with a downwardly extending arm 14, to which is connected a rocking-rod 15 (see Fig. 1) for the purpose of grate 7, it is but necessary to take the brackets 13 off, whereupon the grate can be readily removed.

Having now described my invention, what I claim and desire to secure by Letters Patent 1s:

1. In combination with a hollow grate frame and a grate fitting therein and provided with trunnions, sockets having seats on their under faces integral with said frame and disposed on the inner faces of the sides thereof and receiving said grate trunnions, Lshaped brackets constituting combined supports for the grate trunnions and abutments engaging the grate and the frame sides and limiting the movement of the grate, the bases of said i brackets engaging the under face of the shaking or dumping the fire. To remove the shown) a circulation is effected in the passage 8 around the grate 7. When the grate I frame, and bolts for securing said bases to said frame.

2. In combination with a hollow grate frame and a grate fitting therein and provided with trunnions, sockets having seats on their under faces integral with the inner faces of the frame sides and receiving the grate trunnions, and elements for supporting the grate trunnions and at the same time serving asabutments which engage the grate sides and limit the movement of the grate,

said elements having seats on their top ends I engaging said grate trunnions and each hav'- ing a part whlch extends below the under side of the grate, and means for securing each 15 of said parts to the grate frame.

Signed at New York, N. Y. this 2nd day of August, 1907'.

hi ISAAC .SLAPO.

mark

Witnesses:

EDWARD A. JARVIS, WILLIAM HARRIS. 

